Home / 238,121.40-357,195.78-86,351.52

Finding the Fourth Proportional to 238,121.40, 357,195.78 and 86,351.52

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Solution

The fourth proportional to 238,121.40, 357,195.78 and 86,351.52 is: 129,532.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,121.40 : 357,195.78 = 86,351.52 : x
  2. Step 2: Convert to fraction form
    238,121.40/357,195.78 = 86,351.52/x
  3. Step 3: Cross multiply
    238,121.40x = 357,195.78 × 86,351.52
  4. Step 4: Simplify right side
    238,121.40x = 30,844,398,540.59
  5. Step 5: Solve for x
    x = 30,844,398,540.59/238,121.40
  6. Step 6: Final answer
    x = 129,532.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.